Home / 30,740.04-42,417.78-17,310.96

Finding the Fourth Proportional to 30,740.04, 42,417.78 and 17,310.96

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Solution

The fourth proportional to 30,740.04, 42,417.78 and 17,310.96 is: 23,887.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,740.04 : 42,417.78 = 17,310.96 : x
  2. Step 2: Convert to fraction form
    30,740.04/42,417.78 = 17,310.96/x
  3. Step 3: Cross multiply
    30,740.04x = 42,417.78 × 17,310.96
  4. Step 4: Simplify right side
    30,740.04x = 734,292,492.87
  5. Step 5: Solve for x
    x = 734,292,492.87/30,740.04
  6. Step 6: Final answer
    x = 23,887.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.